यह कठिन है क्योंकि मैं हिंदी नहीं बोलता लेकिन मुझे लगता है कि इकाई का स्थान 7 होगा
Answer: the number is - 18
Step-by-step explanation:
Let the number be represented by x.
If the sum of a number and seven is doubled, the result is four less than the number. The expression would be
2(x + 7) = x - 4
We would open the bracket on the left hand side of the equation by multiplying each term inside the bracket by 2. It becomes
2x + 14 = x - 4
Subtracting 14 and x from the left hand side and the right hand side of the equation, it becomes
2x + 14 - 14 - x =x - x - 4 - 14
x = - 18
Answer:
x^2 - 3
Step-by-step explanation:
they both contain the variable of x^2 and -3 when factored out it would be
3 and x + 2
Answer:
Interval Notation: (
−
∞
,
3
)
∪
(
3
,
∞
)
Set-Builder Notation: {
x
|
x
≠
3
}
